2605579 has 2 divisors, whose sum is σ = 2605580. Its totient is φ = 2605578.

The previous prime is 2605543. The next prime is 2605609. The reversal of 2605579 is 9755062.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2605579 - 2¹⁵ = 2572811 is a prime.

It is an Ulam number.

2605579 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2605529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1302789 + 1302790.

It is an arithmetic number, because the mean of its divisors is an integer number (1302790).

2^2605579 is an apocalyptic number.

2605579 is a deficient number, since it is larger than the sum of its proper divisors (1).

2605579 is an equidigital number, since it uses as much as digits as its factorization.

2605579 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 2605579 is about 1614.1805970832. The cubic root of 2605579 is about 137.6051691259.

The spelling of 2605579 in words is "two million, six hundred five thousand, five hundred seventy-nine".